Solve the System of Equations Using Substitution $$\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 61 \\x - y = 1\end{array} \right.$$

question 100

Multiple Choice

Solve the system of equations using substitution.
- $$\left\{ \begin{array} { l } x ^ { 2 } + y ^ { 2 } = 61 \\x - y = 1\end{array} \right.$$

• A) \(x = 4 , y = 5 ; x = 5 , y = 4\)
• B) \(x = 4 , y = - 5 ; x = 5 , y = - 4\)
• C) \(x = - 4 , y = - 5 ; x = 5 , y = 4\)
• D) \(x = - 4 , y = 5 ; x = - 5 , y = 4\)

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